Interdental device



FIG. 1 is a top perspective view of an interdental device showing my new design;

FIG. 2 is a right side elevation thereof, the side opposite being a mirror image;

FIG. 3 is a rear elevation thereof, the side opposite being a mirror image;

FIG. 4 is a top plan view thereof; and,

FIG. 5 is a bottom plan view thereof.

The broken lines shown in the drawings are included for the purpose of illustrating environmental structure and form no part of the claimed design. 

The ornamental design for an interdental device, as shown and described. 